Parnell was the maker of a promissory note payable to LaSalle. The note was complete and legally correct in all respects except for the following additional terms. Do any of these terms destroy the negotiability of the note?

■ “This note is prepared as a result of a service contract between the parties dated 3/13/—”

■ “This note is secured by a mortgage on the maker’s residence at 67 Park Central West, Pierre, South Dakota.”

■ “This note is payable in Canadian dollars, with exchange.”